Furnace for the annealing of metals.



M. PEDERSEN.

FURNACE FOR THE ANNEALING OF METALS.

APPLIOATION PILED 001229. 1907.

Patented Apr. 26, 19 10.

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- M. PEDERSEN.

FURNACE FOR THE ANNEALING OF METALS. APPLIOATION PILED 00'I`.29.1907`.

955,989. Patented Apr.26, 1910.

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MIKA EL PEDERSEN, OF DURSLEY, ENGLAND.

FURNACE FOR THE ANNEALING OF METALS.

Speciflcation of Letters Patent.

Patented Apr. 26 1910.

Application filed October 29, 1907. Serial No. 399,729.

' specification.

This invention `'elates to a furnace for annealing metals whereinliquid is employed to hermetically seal the chamber 'in which the annealing operation is carried out and 1t consists in the Construction and arrangement of the parts hereinafter described and ointed out in the appended claim wherey theannealing operation is efl'ected in a non-oxdzin atmosphere and to the means for accomplshin the delivery a and disharge of the goo s to and from the annealngcham ber. v a

eferrng to the explanatory xdrawings whch are appended herentoz-Figure 1, s 'a .sectional elevation of a furnace con- V structedaccording to the resent invention.

F lg. 2, sa plan of the urnace shown by Fig. 1. Fig. 3 is a similar View to Fig. 1, but showing a furnace suitable for annealng tubes or rods, and also showing one method of raising or lowering the 'bottom or table by hydraulic means.

In the drawings the furnace is referably formed of a cylindrical shape an is ar: ranged vertically over a tank or basin B of water which seals the lower open end' a' of the furnace A which latter may be made in one piece eitherof iron, fireclay or any other sutable materal or it may be built up of 'bricks with passages or flues for the flame is so arranged that it may bedepressed from or elevated to the int'erior of the furnace A from below and for this purpose it is mounted at D upon the outer extremity d of a tubular pivoted arm d' which ma be swung around and moved in a vertica direction.

At its end d the said arm d' is attached to' a bracket e' which is adapted by means of a squared or like hole therein to slide up or down on a cor'espondingly' shaped vertical shaft E which is suitably journaled at 6 to the main tank B, suitable provision being made to prevent the egress of water from the latter. An upwardly extending handle J is attached to the arm d' by a socket j' by which the table may be manually depressed or elevated and to assist such manipulation -counterweights K are Suspended on a chain Ic' which passes over a pulley L journaled on a b'acket Z' Secured to a squared extension e of the vertical shaft E, such chain in' being attached to the horizontal 'arm d' by a bolt 70 In operation, the goods .are placed upon the table C which* is then above the water, the arm d' carryin the table U immersed to a suitable depth n the water in the tanlc B and such arm d' and table C swung around with the vertical pivot E as axis until they assume a osition directly below the retort A. The ta le C and arm d' are then elevated by manipulating the handle J until the table supporting the goods arrives at a suitable position inside the retort, the process of removal being efl'ected in an exactly similar manner but .in the contrary direction.

The furnace may be heated by any suitable heating device, but as the heating apparatus does not constitute part of the in Vention, and as it is nota necessary element in the ercction of the furnace, although it is necessary for its operation, it has not been illustrated.

Having now' particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is An annealing furnace comprising an annealing chamber having its lower end open, a water tank below the lower end of the annealing chamber, a removable bottom for the annealing chamber, a supporting arm connected at one end to the renovab e bottom, a vertical shaft journaled to oscillate supporting arm, and a counter weight aty in the water tank, a bracket Secured to the 'cached to the other end of the chan. 10

other end of the supporting arm and Ver- In witness whereof I have hereunto set tically' movable on, and,' oscilltng With; my hand in the presence of two witnesses.

5 the shaft, a handle attached to thesupport- MIKAEL PEDERSEN. ing arm to efl"ect its vertical adjustment, a Witnesses: i? grooved idler, a chain passing over the VVALTER HLEBABTLAM,

grooved idler attached at one end to the D. M. BARDEN. 

